One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,5,8)(3,9,10,6)(4,12,13,7)(11,14,16,15)(17,18)(19,28)(20,26)(21,34)(22,32)(23,25)(24,30)(27,36)(29,46)(31,45)(33,42)(35,40)(37,44)(38,43)(39,47)(41,48)(1,3)(2,6)(4,11)(5,10)(7,14)(8,9)(12,15)(13,16)(17,18)(19,24)(20,32)(21,27)(22,26)(23,25)(28,30)(29,41)(31,39)(33,44)(34,36)(35,43)(37,42)(38,40)(45,47)(46,48) involution — undirected(17,19,23,31)(18,24,25,39)(20,29,22,38)(21,35,37,48)(26,40,32,41)(27,43,42,46)(28,44,45,34)(30,33,47,36)(3,10)(6,9)(11,16)(14,15)(18,25)(24,39)(26,32)(27,42)(28,45)(34,44)(40,41)(43,46) involution — undirected(1,4,5,13)(2,7,8,12)(3,11,10,16)(6,14,9,15)(17,20,23,22)(18,26,25,32)(19,29,31,38)(21,33,37,36)(24,40,39,41)(27,34,42,44)(28,46,45,43)(30,35,47,48)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.